If my social circle (in real life) is anything to go by, mostly testing out home renovation/decoration ideas.

That's also what my real life social circle does. My friends and family test out home reno/decoration ideas, and as I posted in another comment, my wife likes to visualize different layouts and changes to her flower gardens.

I make my brother look older and plumper in most pics he sends me. It makes me laugh.

Yep, renovation and landscaping idea mostly.

Well, that and infographics on what to do when the AI's start to take over.

Those monsters